None of which changes the strength of the axle shaft. 59.25 inches to 61.25 inches, 1957-1959 Ranchero and station wagon rears, 57.25 inches, 1967-1971 Comet, Cougar, Mustang, Fairlane, 59.25 inches, 1967 Fairlane 63.50 inches (coil springs), 1957-1959 Ranchero and station wagon 57.25 Anyone know? Ford 9 inch axles different from other high-performance rear endsare how the ring and pinion gear is accessed. for the 1971-1973 Mustangs - cars with 351 engines and up receiving the 9-inch Note the two lower bolts at 6 and 7 oclock have straight access with a socket. It has more ground clearance than a Dana 60. weakest and had abrupt ending but welded carrier centers to tubes and a Ford Rear End Ratio Chart - metropartsmarket.com 1972 and earlier, 31 spline axles have the ability to be shortened. 1973-1979 Ford Truck Rear Axle Codes. Measuring for your 9-inch axles requires a few basic measurements to be taken. Dec 1, 2011. If you don't know your gear ratio, you can calculate it by taking the number of rear . narrowed rear ends due to the added strength in the middle. On this particular third member, the original copper washers that were under the factory fasteners have been discarded as well. This larger offset (hypoid distance) between ring-gear and pinion-gear centerlines is the key reason the Ford is inherently strongerbut also why its slightly less efficient. 1999 Ford Ranger Rear Axle Assembly7.5 RING GEAR, 9 BRAKES, 3.73 RATIO Its called a 9 inch because the ring gear measures 9 inches. Most of and Fairlane axle housings are often grouped together because they are the Differential Identification | West Coast Differentials We offer a guide to follow when selecting a new set of brake pads for your race or street car. Once you have identified the label, locate the word AXLE under the bar code section. So again, unlike the GM and Dana axles that require a unique differential with different ratios, the Ford 8.8-inch differential is common across all of the ring-and-pinion ratios. found in the trucks up to around 1982. In the 1980s and 1990s, the Lincoln Versailles brakes and complete axles were highly sought after because it was the only way to get a 9-inch axle with discs in a 58-inchwide axle package. H. 2.75 locking differential. 61.25 inches, 1967-1971 Comets, Cougars, Fairlanes 59.25 inches, 1967-1973 medium and big block Mustangs and Cougars, 1966-1971 Fairlanes, Torinos, Montegos, Comets, and other The primary purpose of this plate is to show you if your vehicle is equipped with a limited-slip to rear-end differential. That is your vehicles axle code. Also, since this axle is used in so many circle-track race cars, the 9-inch enjoys an unparalleled availability of different gear ratios in the aftermarket. The instructions below will walk you through the steps. the Broncos from 1966 to 1977, they stayed with the 28-spline units. Thanks. Ford improved tooth contact of the Ford 9 inch gears by locating its pinion gear lower on the ring gear. 100 x 4.12. 54" Chevy Rear End Gear Ratio Chart - Autos Hub The exception is the 2002-2003 Ford Explorer Sport which still used the solid rear 8.8-Inch axle. Ford 9-Inch Axles - The Ranger Station Calculate Rear End Gear Ratio Needed - speedmaster79.com These axles even have a unique bolt pattern of five on 5 inches. As you proceed to the Ford Axle Code chart, you will notice that the table indicates it has a Ford 8.8 Limited Slip Differential with an Axle Ratio of 3.55. While the 8.8 is similar to the 12-bolt, it isnt identical. The aftermarket has responded to this by offering a plethora of ratios ranging from 2.91 to 6.50:1. The BOM will identify the model number, the gear ratio, the type of differential, and all component parts. Click on the 'Submit' button to find out how you It is common to find a 9-inch in a old Falcon or The Ford 8.8-inch axle has the same ring gear mounting distance (see Chapter 7) for all ratios, just like the 9-inch. (often referred to as a "POSI") came to be a popular option and It allows for the pinion side Center Section to be removed. medianet_width = "300"; in the backside middle and stronger tubes. trucks varied more, early half ton trucks got the 28-spline axles and The same applies to vehicles with codes containing numbers alone. duty.And believe it or not, they were also used in some FE equipped Ford is the strongest factory case made BY FORD!!! shafts. housings appeared in either 1966 or 1967 with the familiar "Hump" The third member supports all of the gears and bearings, which allows for easier gear ratio swaps if you have multiple third members. PDF Differential ID Chart - Summit Racing Equipment Factory Original Gear Ratio | Vintage Mustang Forums Here is an example to help you through. There are even different pinion cartridges that have been available from the various production years and models for this axle. But if youre looking for an original, they can be spotted quite readily even without an axle identifycation tag. Ford Rear Axle Assembly Identification - Page 01 . for 1965-1966 (the same width as 1964-1965 Falcons and 1962-1965 Fairlanes 1957 . The small are 2.835" or just under 3" and the large are 3.150" or just over 3". TEETH 1 4.11 79-0097-1 37-9 1 4.29 79-0098-1 30-7 1 4.57 79-0101-1 32-7 2 5.14 79-0109-L 36-7 2 5.17 79-0112-L 31-6 2 5.20 79-0111-L 26-5 For Maximum . Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. The Ford 8.8-inch is very similar to the General Motors (GM) 878-inch, 12-bolt axle. Axles Tubes Are 4-Inches. A The close-ratio and C4 289HP trans were mated to the 3.50, and occasionally to the 3.89 and 4.11. shafts. Gear Ratios, Limited Slip and Your Mustang's Rear End This format is also applicableto casting date codes. Ford Rear Axle Assembly Identification - Page 01 People tend to be drawn to it like a magnet. Like the 9-inch, the 8-inch uses no carrier breaks, meaning you can put a 5.43:1 ring and pinion in a 2.79:1 rear without changing to a smaller differential carrier. This custom axle tag was obviously hand cut as evidenced by the sharp tin-snipped-looking ends and includes DSO, for Dealer Special Order. For a better experience, please enable JavaScript in your browser before proceeding. Well show you what to look for in this buyers guide. Performance Front & Rearends GM Vehicles Torsion Axle Vs. (often referred to as a "POSI") came to be a popular option and Visit the RV & Trailer Towing Guides page on the Ford fleet website. inch diameter all the way to the backing plate, coil housings have upper Ford 8.8-Inch Rear Axle History & Specs - The Ranger Station The following chart of Tire sizes and axle gear ratios are meant to give a general idea of the relationship between the differential gear ratio and the tire size and what effect the ratio has on power output and fuel economy. N-case. The rear-end housing has a vast amount of ford 9-inch gear ratios available. The GoJak wheel dolly makes moving immobile vehicles around your shop easy as place, pump, and push! This is an easy way to identify the third members, so youre sure to buy the correct axle. 8.75, 9.25, Ford 9 inch, and GM's 8.25 inch . bearings, 28 and 31 splines, 57-68 passenger car and 1/2 ton truck - medium duty, stronger than Mustang Axle Ratio = (RPM X Tire Size)/ (Speed (MPH) X 336) Example 4.88 = (2881 X 37)/ (65 X 336) The Ford Explorer uses an independentstyle Carrier made out of cast aluminum. These labels have a specific code that is similar to the axle code on the 9-inch axles. the best. common carrier housing found is the C7AW-E. Because Generally most cars received the small axle bearings and 28-spline axle . The Mustang Shelby GT housing is an easy one to spot, albeit rare, because it has extreme tapering of the axle tubes at the ends. The Ford 9 inch housing is a semi-floating, drop-out axle. It can also help in identifying the axle ratio of your particular vehicle. This is a major advantage compared to other rear axle systems because disassembly is faster and more convenient. The last one i got was marked "Mustang Posi" on the rear of the differntial by the people at the yard who dissembled the car. Application Ring Gear And Pinion NL or L Axle Shaft Splines Additional Information; Ratio: Diameter of RG: WBG-E : Ford Truck '63-71 F100: 3.70: 9 in: NL: 28-WBG-F : Ford Truck '63-71 F100: 3.89: 9 in . Ford 9 inch gears - Strange Engineering To determine the axle ratioof your vehicle, locate thetwo-digitaxle code first, then use your vehicle'stowing guide to find the axle ratio that corresponds to that code. Ford intermediates with big blocks. $(document).ready( function () {$('#dtTable').DataTable( {paginate: false} );} ); 1954 Ford F100 / 2000 Lincoln Towncar Chassis Swap for Under $1,000, Tire Width Minimum, Maximum, and Ideal Size Chart by Wheel Width, An Online Magazine for DIY Hot Rod Builders. Some of the heavier cars like the Galaxies also received the If an L is included, it was equipped with a limited-slip differential or Traction- Lok. by Ford exist in the size of the outer axle bearings in the housings and Select the Towing Guide for your vehicle's model year. A Lincoln Versaille rear is a 9" with 28 spline axles, big axle bearings, and disc brakes. Because With their high-volume production, the two biggest quality problems were leaks from poor welds and poor alignment of the housings.